Tubular steam-boiler.



No. 884,956. PATBNTED APR. 14, 1908.

G. RUHRS.

TUBULAR STEAM BOILER.

APPLICATION FILED MAY 29, 1907.

2 SHEETS-SHEET 1.

No. 884,956. PATENTED APR. 14, 1908. C. RUHRS TUBULAR STEAM BOILER.

APPLICATION FILED MAY 29, 1907- 2 SHEETS-SHEET 2.

UNITED STATES PATENT OFFICE. I CARL norms or LANDsBERG-oN- rHE wARTHE, GERMANY. I

Patented April 14, 1908.

Application filed m 29, 1907. Serial no. 376,225;

To all whom it may concern:

" Be it known that I, CARL Rdims, a subject of the King of Prus'sia,.residin at Landsbergon-the-Warthe, in'th'e King om of Prussla and German Empire, have invented a new and useful Improvement inTubular Steam- B'oilers, of which the following is a specifica- Steam boilers provided. with several top shells, have heretofore been so constructed that the steam is conducted from the front shell through the middle shell or shells to the back shell and from thence back' again to a special steam chamber in one .of the middle These drawbacks are" overcomeaccording to steamchamber is rendered unnecessar the the present invention by causing the steam to piss from the foremost shell direct into the dmost shell and from thence into the middle shell. By t construction a special cost is reduced' and' the safety of the be erincreased;

A the accom anying drawing illustrating my mventlonz igure 1 is a vertical section,

and Fig. 2, a plan of one construction, and

. Fig.- 3, a verticalsection of another construc tion ofthe boiler.

The boiler shown in Fi consists of three top shells A, B and C an two bottom/shells" D and E. Said to and bottom shells are. connected with eac other b nests of tubes F, G, H and Further the ottom shells D and E are connected togetherbya number of tubes K and the .water chambers of the top thisboiler the top shells are connected 'toether in exactly the same manner as in the hoiler, shown in'Fi 1 and 2. Underneath the nests of tubes in Fig. 1 and H in Fig. 3- is provided the grate P. The hot ases pass along the tubes in the direction of t ;e arrows. In the nests of tubes immediately over the grate steam is most rigorously developed, which in rising carries a lar e quantity of waterinto the top shell C. 1 his wet steam does not ass direct into the middle shell as in the bo1 ers of this kind heretofore known, but enters the hindmost shell A through the pipe N. Here the steam loses its veloclty, so that the'heavier particles of water are depos ited, whereupon the steam asses through the pi es 0 into the middle s ell B, the last partic es of water being se arated by the sharpredges of said pgipes. ken om the boiler throu h the socket S.- When more, than three top s ells are used it he steam is tais immaterial which of the middle shells is asteam' ip connectingthe outer upper shells with eac ot er, and asteam' ipe connecting one of said, outershells with t e intermediate shell for the purpose set forth. 1

.2. The combination with the grate, of.-a water shell arran ed ther'eabove, a lurality -of other water s ells arranged be 'd the first shell and spaced apart therefrom, a water connection between theshells, a'steam connection'bet'ween the foremost shell and. the

rear-most shell, and a steam-connection between thelrearmost and the intermediate Witnesses:

WOLDEMA'R Ham, VYHENBY Hasrrm.

' CARL RoHRsf 

